Business Source No. 10 Double-Window Invoice Envelopes - Double Window - #10 - 9 1/2" (241.30 mm) Width x 4 1/8" (104.78 mm) Length Diameter - 24 lb (10886.22 g) - Gummed - White - Wove - 500 / Box

No. 10 business envelopes feature double windows and a security tint to secure your documents. Top window is 1" x 3" , 1/2" from the left side and 2-1/2" from the bottom. Bottom window is 1-1/8" x 4" , 1/2" from the left, and 3/4" from the bottom. Design also features a white wove material, side seam and gummed seal. 24 lb.